A class B network 129.35 has 10 subnets. Which of the following options is the correct subnet mask?
A.
255.255.128.0 (11111111.11111111.10000000.00000000)
B.
255.255.192.0 (11111111.11111111.11000000.00000000)
C.
255.255.224.0 (11111111.11111111.11100000.00000000)
D.
255.255.240.0 (11111111.11111111.11110000.00000000)